/Engine/Source/Runtime/Engine/Classes/Sound/SoundNode.h
When called, this will find any child wave players connected to this node and null out their associatedUSoundWave, allowing theUSoundWaveto be garbage collected. This should only be called byUSoundNodeQualityLevel::PostLoadwhen au.CullSoundWaveHardReferences is 1.
virtual void RemoveSoundWaveOnChildWavePlayers()